Color

#002b57

#002b57
hex#002b57
rgbrgb(0, 43, 87)
hslhsl(210, 100%, 17%)
oklchoklch(0.29 0.091 253.6)
Closest name: Marine (#042e60)Relative luminance 0.0242

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#572b00

#005757 · #000057

#57002b · #2b5700

Split-complementary

Open in tool →

#570000 · #575700

#570057 · #572b00 · #005700

Contrast

#002b57 as textRatioAAAA largeAAAFix
Aaon white
14.16:1passpasspassPasses AAA — no fix needed.
Aaon black
1.48:1failfailfail
  • AA: use #0073e6 as the text (4.59:1)
  • AAA: use #3399ff as the text (7.14:1)
  • AA: or shift the background to #949494 (4.67:1)
  • AAA: or shift the background to #b8b8b8 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #002b57 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#002b57 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #002b57
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #002b57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/002b57-9cabc4-df514e-1f202d-e9f1f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md